Unless specifically defined below, words or
phrases used in this article shall be interpreted so as to give them
the meaning they have in common usage and to give this article its
most reasonable application.
AIRGAP
The unobstructed vertical distance through the free atmosphere
between the lowest opening from any pipe or faucet supplying water
to a tank, plumbing fixture, or other device and the flood-level rim
of the receptacle.
APPROVED DOUBLE CHECK VALVE ASSEMBLY
An assembly of at least two independently acting approved
single check valves, including tightly closing shutoff valves on each
side of the check valve assembly and suitable test cocks plus connections
available for testing the water tightness of each valve.
APPROVED SINGLE CHECK VALVE
A check valve that seats readily and completely. It must
be carefully machined to have free-moving parts and assured water
tightness. The face of the closure element and valve seat must be
bronze composition, or other noncorrodible material which will seat
tightly under all prevailing conditions of field use. Pins and bushings
shall be of bronze or other noncorrodible, nonsticking material, machined
for easy, dependable operation. The closure element (e.g., clapper)
shall be internally weighted or otherwise internally equipped to promote
rapid and positive closure in all sizes where this feature is obtainable.
AUXILIARY SUPPLY
Any water source or system other than the potable water supply
that may be available in the building or premises.
BACKFLOW
The flow of water or other liquids, mixtures, or substances
into the distributing pipes of a potable supply of water from any
source or sources other than its intended source. Backsiphonage is
one type of backflow.
BACKSIPHONAGE
Backflow resulting from negative pressures in the distributing
pipes of a potable water supply.
BAROMETRIC LOOP
A loop of pipe rising at least 35 feet, at its topmost point,
above the highest fixture it supplies.
CHECK VALVE
A self-closing device which is designed to permit the flow
of fluids in one direction and to close if there is a reversal of
flow.
COUNTY HEALTH OFFICER
The Ulster County Commissioner of Health, his assistants
or authorized deputies acting as, or any other person appointed as,
public health officer of the County of Ulster.
CROSS-CONNECTION
Any physical connection between a potable water supply and
any waste pipe, soil pipe, sewer, drain, or any unapproved source
or system or any potable water supply outlet which is submerged or
can be submerged in waste water and/or any other source of contamination.
(See “backflow” and “backsiphonage.”)
DRAIN
Any pipe that carries waste water or waterborne wastes in
a building drainage system.
HEALTH HAZARD
Any conditions, devices or practices in the water supply
system and its operation which create, or in the judgment of the Superintendent
of Public Works, Code Enforcement Officer or Building Inspector, may
create, a danger to the health and well-being of the water consumer.
An example of a health hazard is a structural defect in the water
supply system, whether of location, design or construction that regularly
or occasionally may prevent satisfactory purification of the water
supply or cause it to be polluted from extraneous sources.
HYDROPNEUMATIC TANK
A pressure vessel in which air pressure acts upon the surface
of the water contained within the vessel, pressurizing the water distribution
piping connected to the vessel.
INLET
The open end of the water supply pipe through which the water
is discharged into the plumbing fixture.
PLUMBING FIXTURE
Installed receptacles, devices, or appliances supplied with
water or that receive or discharge liquids or liquid-borne wastes.
PLUMBING HAZARD
Any arrangement of plumbing, including piping and fixtures,
whereby a cross-connection is created.
PLUMBING SYSTEM
Includes the water supply and distribution pipes, plumbing
fixtures, and traps; soil, waste and vent pipes; building drains,
and building sewers including their respective connections, devices,
and appurtenances within the property lines of the premises; and water-treating
or water-using equipment.
POLLUTION
The presence of any foreign substance (organic, inorganic,
radiological, or biological) in water that tends to degrade its quality
so as to constitute a hazard or impair the usefulness of the water.
REDUCED PRESSURE ZONE BACKFLOW PREVENTER
An assembly of differential valves and check valves, including
an automatically opened spillage port to the atmosphere designed to
prevent backflow (referred to herein as "RPZ").
SURGE TANK
The receiving, nonpressure vessel forming part of the airgap
separation between a potable and an auxiliary supply.
VACUUM
Any pressure less than that exerted by the atmosphere.
WATER, POTABLE
Water free from impurities in amounts sufficient to cause
disease or harmful physiological effects. Its bacteriological and
chemical quality shall conform to the requirements of the Public Health
Service Drinking Water Standards or to the regulations of the public
health authority having jurisdiction.
WATER, NONPOTABLE
Water that is not safe for human consumption or is of questionable
potability.
It shall be the duty of the water user on any
premises on account of which backflow protective devices are installed,
to have competent inspections made at least once a year, or more often
in instances where successive inspections indicate repeated failure.
Devices shall be repaired, overhauled or replaced at the expense of
the water user whenever they are found to be defective. These tests
shall be performed by a qualified backflow prevention device tester
and all test results will be provided to the water user within 72
hours after the test is made. Records of such tests, repairs and overhaul
shall also be kept and made available to the water user and the local
health department upon request.
All presently installed backflow prevention devices which do not meet the requirements of this article, but were approved devices for the purposes described herein at the time of installation and which have been properly maintained shall, except for the inspection and maintenance requirements under §
207-22 of this article, be excluded from the requirements of these rules as long as the Superintendent is assured that they will satisfactorily protect the Village's water supply. Whenever the existing device is moved from its present location or requires more than minimum maintenance which constitutes a hazard to health, the unit shall be replaced by a backflow prevention device meeting the requirements of this article.